CN214581526U - Air suspension direct expansion type air conditioning unit - Google Patents
Air suspension direct expansion type air conditioning unit Download PDFInfo
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- CN214581526U CN214581526U CN202120167983.3U CN202120167983U CN214581526U CN 214581526 U CN214581526 U CN 214581526U CN 202120167983 U CN202120167983 U CN 202120167983U CN 214581526 U CN214581526 U CN 214581526U
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- 239000000725 suspension Substances 0.000 title claims abstract description 105
- 238000004378 air conditioning Methods 0.000 title claims abstract description 62
- 239000007788 liquid Substances 0.000 claims abstract description 44
- 239000003507 refrigerant Substances 0.000 claims abstract description 42
- 238000001816 cooling Methods 0.000 claims description 45
- 230000000694 effects Effects 0.000 description 8
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of the air conditioner, specifically provide a formula air conditioning unit is directly expanded in gas suspension. The utility model discloses aim at solving current air suspension air conditioning unit and influence its heat exchange efficiency's problem because of the not enough factor of pressure ratio easily. For this reason, the utility model discloses a formula air conditioning unit is directly expanded in gas suspension includes refrigerant circulation circuit and lifts an air feed branch road with what refrigerant circulation circuit linked to each other, wherein, the last gas suspension compressor that has set gradually of refrigerant circulation circuit, the check valve, the condenser, the reservoir, the throttling component, indoor heat exchanger and vapour and liquid separator, it is provided with the air feed component on the axle air feed branch road to lift, the one end of lifting axle air feed branch road links to each other with the reservoir, and the other end of lifting axle air feed branch road links to each other with the gas suspension compressor, so that the refrigerant in the reservoir can be through lifting axle air feed branch road and in going into the gas suspension compressor behind the air feed component, thereby effectively promote the pressure ratio of gas suspension compressor, and then effectively promote the heat exchange efficiency of formula air conditioning unit is directly expanded in gas suspension.
Description
Technical Field
The utility model belongs to the technical field of the air conditioner, specifically provide a formula air conditioning unit is directly expanded in gas suspension.
Background
With the continuous improvement of the living standard of people, the air conditioning unit becomes a heat exchange device essential to the life of people. Although the types of the existing air conditioning units are more and more, and the overall structure is continuously updated, the compressor is always an essential important element for various air conditioning units, and the operating state of the compressor can directly influence the reliability of the whole air conditioning unit, so that the selection of the compressor is particularly important.
Most of compressors used by the existing multi-split air conditioning unit are screw compressors, so that the stability is high, and meanwhile, the manufacturing cost and the use cost are also high; in recent years, in order to better improve the energy efficiency of the air conditioning unit, part of the multi-split air conditioning unit is configured with various suspension compressors, and the suspension compressors have good energy-saving effect, mute effect and longer service life although the suspension compressors are slightly insufficient in stability. However, the conventional air suspension compressor is difficult to be widely applied due to the low pressure ratio, and therefore, the pressure ratio problem also becomes an important problem hindering the development of the air suspension air conditioning unit.
Accordingly, there is a need in the art for a new air suspension direct expansion air conditioning unit that solves the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, namely to solve the problem that the heat exchange efficiency of the existing air suspension air conditioning unit is easily affected by the factor of insufficient pressure ratio, the utility model provides an air suspension direct expansion type air conditioning unit, the air suspension direct expansion type air conditioner unit comprises a refrigerant circulation loop and a shaft lifting air supply branch connected with the refrigerant circulation loop, the refrigerant circulation loop is sequentially provided with a gas suspension compressor, a one-way valve, a condenser, a liquid storage device, a throttling component, an indoor heat exchanger and a gas-liquid separator, an air supply component is arranged on the shaft-lifting air supply branch, one end of the shaft-lifting air supply branch is connected with the liquid storage device, and the other end of the shaft lifting air supply branch is connected with the air suspension compressor, so that the refrigerant in the liquid accumulator can pass through the shaft lifting air supply branch and enter the air suspension compressor after flowing through the air supply member.
In the preferred technical scheme of the air-suspension direct-expansion air conditioning unit, the air-suspension direct-expansion air conditioning unit further comprises a compressor auxiliary path and a middle air supply branch path, two ends of the compressor auxiliary path are respectively connected to an air inlet end and an air outlet end of the air-suspension compressor, one end of the middle air supply branch path is connected with the liquid storage device, and the other end of the middle air supply branch path is connected to the compressor auxiliary path.
In the preferred technical scheme of the air-suspension direct-expansion air conditioning unit, the air-suspension direct-expansion air conditioning unit further comprises a bypass branch, a bypass valve is arranged on the bypass branch, one end of the bypass branch is connected between the air-suspension compressor and the one-way valve, and the other end of the bypass branch is connected with the gas-liquid separator.
In the preferred technical scheme of the air-suspension direct-expansion air conditioning unit, the air-suspension direct-expansion air conditioning unit further comprises a load balancing branch, a load balancing valve is arranged on the load balancing branch, one end of the load balancing branch is connected between the one-way valve and the condenser, and the other end of the load balancing branch is connected with the gas-liquid separator.
In the preferred technical scheme of the air-suspension direct-expansion air conditioning unit, the air-suspension direct-expansion air conditioning unit further comprises a first cooling branch, a cooling expansion valve is arranged on the first cooling branch, one end of the first cooling branch is connected with the liquid storage device, and the other end of the first cooling branch is connected with the gas-liquid separator.
In the above preferred technical scheme of the air-suspension direct-expansion air conditioning unit, the air-suspension direct-expansion air conditioning unit further includes a second cooling branch, one end of the second cooling branch is connected to the liquid reservoir, and the other end of the second cooling branch is connected to the air-suspension compressor.
In the preferable technical scheme of the air-suspension direct-expansion air conditioning unit, a cooling port is formed in a shell of the air-suspension compressor, the cooling port is located near a motor of the air-suspension compressor, and the other end of the second cooling branch is connected with the air-suspension compressor through the cooling port.
In the preferred technical scheme of the air suspension direct expansion type air conditioning unit, an electric control ball valve is further arranged on the refrigerant circulating loop and is positioned between the liquid reservoir and the throttling component.
In the preferred technical scheme of the air suspension direct expansion type air conditioning unit, the number of the indoor heat exchangers and the number of the throttling components are multiple, a plurality of indoor heat exchange branches connected in parallel are arranged on the refrigerant circulation loop, and each indoor heat exchange branch is provided with the throttling component and at least one indoor heat exchanger.
In the preferred technical scheme of the air suspension direct expansion type air conditioning unit, the throttling component is a thermal expansion valve; and/or the condenser is an evaporative condenser.
As can be understood by those skilled in the art, in the technical scheme of the utility model, the air suspension direct expansion type air conditioner unit comprises a refrigerant circulation loop and a shaft lifting air supply branch connected with the refrigerant circulation loop, the refrigerant circulation loop is sequentially provided with a gas suspension compressor, a one-way valve, a condenser, a liquid storage device, a throttling component, an indoor heat exchanger and a gas-liquid separator, an air supply component is arranged on the shaft-lifting air supply branch, one end of the shaft-lifting air supply branch is connected with the liquid storage device, and the other end of the shaft-lifting air supply branch is connected with the air suspension compressor, so that the refrigerant in the liquid accumulator can pass through the shaft-lifting air supply branch and enter the air suspension compressor after flowing through the air supply member, therefore, the pressure ratio of the air suspension compressor is effectively improved, and the heat exchange efficiency of the air suspension direct expansion type air conditioning unit is further effectively improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the air suspension direct expansion type air conditioning unit of the present invention;
reference numerals:
11. a refrigerant circulation circuit; 111. a gas suspension compressor; 112. a one-way valve; 113. an evaporative condenser; 114. a reservoir; 115. an electrically controlled ball valve; 116. a throttling member; 117. an indoor heat exchanger; 118. a gas-liquid separator; 119. an indoor heat exchange branch;
21. a shaft lifting air supply branch; 211. a gas supply member;
31. a compressor accessory circuit; 32. a middle air supply branch;
41. a bypass branch; 411. a bypass valve;
51. a load balancing branch; 511. a load balancing valve;
61. a first cooling branch; 611. cooling the expansion valve;
71. a second cooling branch.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications. For example, although the air suspension direct-expansion type air conditioning unit described in the preferred embodiment includes a plurality of indoor units, it is obvious that this is not restrictive, and a technician may set the specific number of indoor units according to actual use requirements. Such changes in the specific number of elements do not depart from the basic concept of the present invention and fall within the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and the like are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring first to fig. 1, the overall structure of the air suspension direct expansion air conditioning unit of the present invention is schematically shown. As shown in fig. 1, the air-suspension direct-expansion air conditioning unit of the present invention includes a refrigerant circulation loop 11 (a loop shown by a thick line portion in fig. 1) and a shaft-lifting air supply branch 21 connected to the refrigerant circulation loop 11, wherein the refrigerant circulation loop 11 is sequentially provided with an air-suspension compressor 111, a check valve 112, an evaporative condenser 113, a liquid reservoir 114, an electric control ball valve 115, a throttling member 116, an indoor heat exchanger 117 and an air-liquid separator 118, and the refrigerant is circulated through the refrigerant circulation loop 11, so as to realize a heat exchange effect through the indoor heat exchanger 117; the air supply member 211 is arranged on the shaft lifting air supply branch 21, one end of the shaft lifting air supply branch 21 is connected with the liquid accumulator 114, and the other end of the shaft lifting air supply branch 21 is connected with the air suspension compressor 111, so that the refrigerant in the liquid accumulator 114 can enter the air suspension compressor 111 through the shaft lifting air supply branch 21 and after flowing through the air supply member 211, so that air supplement is effectively realized, and the pressure ratio of the air suspension compressor 111 is effectively improved. In other words, the branch portion disposed between the accumulator 114 and the air suspension compressor 111 and provided with the air supply member 211 is the lift shaft air supply branch 21, and preferably, a technician may further increase the air supply capacity by disposing a refrigerant pump on the lift shaft air supply branch 21. It should be noted that, a skilled person may also adjust the specific structure of the refrigerant circulation circuit 11 according to actual use requirements, as long as the air suspension compressor 111 is disposed on the refrigerant circulation circuit 11.
In addition, it should be noted that technicians may also adjust the types of the elements and the specific structures of the elements on the refrigerant circulation circuit 11 according to actual requirements; for example, although the condenser used in the preferred embodiment is an evaporative condenser, this is only one preferred arrangement, and the condenser may also be a shell and tube condenser; for another example, although the refrigerant circulation circuit 11 described in the preferred embodiment is provided with the electric ball valve 115, this is only a preferred scheme provided for ensuring the precise control effect, and the electric ball valve may not be actually provided, or may be replaced with an electronic expansion valve; for another example, the gas supply member 211 is preferably provided as a gas supply tank, and the type of the gas supply tank may be set by itself, although this is not limitative. In other words, the above arrangement is a preferred arrangement, and is not a restrictive arrangement, and the technical staff can adjust itself according to the actual use requirement, as long as the basic principle of the present invention is not deviated, which belongs to the protection scope of the present invention.
In the preferred embodiment, the refrigerant circulation loop 11 is further provided with five indoor heat exchange branches 119 connected in parallel, the five indoor heat exchange branches 119 are disposed between the electric ball valve 115 and the gas-liquid separator 118, and each indoor heat exchange branch 119 is provided with an indoor heat exchanger 117 and a throttling member 116, so as to respectively control the heat exchange condition of each indoor heat exchange branch 119. Further preferably, the throttling element 116 is a thermal expansion valve, the air-suspension direct expansion air conditioning unit can correspondingly adjust the refrigerant circulation condition in the corresponding indoor heat exchange branch 119 by controlling the opening degree of the thermal expansion valve, so as to adjust the heat exchange capability of the corresponding indoor heat exchanger 117, the indoor heat exchanger 117 is preferably arranged in an air-cooled indoor unit, different indoor units can be arranged in the same room, or can be arranged in a plurality of rooms, which is not restrictive, and technicians can adjust the air-suspension direct expansion air conditioning unit according to actual use requirements. It should be noted that, the present invention does not limit the specific number and types of the indoor heat exchanger 117 and the throttling member 116, and the technician can adjust the heat exchanger according to the actual use requirement; for example, the number of the indoor heat exchangers 117 may be one or more; also for example, the throttle member 116 may be a thermal expansion valve or an electronic expansion valve. The adjustment of the specific structure is not limited, and the skilled person can adjust the structure according to the actual use requirement.
Based on the above structure arrangement, the high-temperature and high-pressure gaseous refrigerant compressed by the air suspension compressor 111 flows through the check valve 112 and enters the evaporative condenser 113, the exhaust pressure of the air suspension compressor 111 can be detected by arranging an exhaust pressure sensor between the air suspension compressor 111 and the check valve 112, and the intake pressure of the evaporative condenser 113 can be detected by arranging an evaporative pressure sensor between the check valve 112 and the evaporative condenser 113, so as to effectively monitor the operation condition of the air suspension direct expansion type air conditioning unit; then, the liquid refrigerant flowing out of the evaporative condenser 113 enters the liquid accumulator 114, and an economizer is preferably further disposed downstream of the liquid accumulator 114 to further improve the heat exchange efficiency, which is not a limiting arrangement; then, the air flows through an electric control ball valve 115, is split by a flow splitting component and then enters a plurality of indoor heat exchange branches 119, so that the air is reduced in pressure by a throttling component 116 and then is cooled in different rooms by corresponding indoor heat exchangers 117; finally, the gaseous refrigerants are collected and enter the gas-liquid separator 118, after gas-liquid separation, the superheated low-temperature low-pressure gaseous refrigerants discharged from the gas-liquid separator 118 flow back to the gas suspension compressor 111, and a suction pressure sensor is preferably further arranged between the gas-liquid separator 118 and the gas suspension compressor 111 so as to obtain the suction pressure of the gas suspension compressor 111, so that the whole heat exchange cycle process is completed.
When a user needs to exchange heat, the air suspension direct expansion type air conditioning unit is started through a control panel of the air suspension direct expansion type air conditioning unit, corresponding target temperature is set, the air suspension compressor 111 is selectively started according to actual heat exchange requirements, then the whole air conditioning unit is adjusted in operation parameters according to detection conditions of various sensors, and various indoor heat exchange branch circuits 119 are selectively communicated according to actual requirements to exchange heat, after the target temperature is reached, the air suspension compressor 111 is controlled to stop, and the air suspension compressor is started next time. Preferably, the control panel of the air suspension direct expansion type air conditioning unit may set a target pressure value of the air suspension compressor 111, control the suction pressure of the air suspension compressor 111 to control the evaporation pressure at the side of the indoor heat exchanger 117, perform energy adjustment according to the suction pressure, and combine with the control of each throttling member 116 to finally adjust the cooling capacity of each indoor heat exchanger 117, thereby achieving the effect of reducing the indoor temperature.
With continuing reference to fig. 1, as shown in fig. 1, the air-suspension direct-expansion air conditioning unit further includes a compressor auxiliary path 31 and an intermediate air supply branch path 32, and the refrigerant flow directions in the compressor auxiliary path 31 and the intermediate air supply branch path 32 are as indicated by arrows in fig. 1, wherein two ends of the compressor auxiliary path 31 are respectively connected to an air inlet end and an air outlet end of the air-suspension compressor 111, a left end of the intermediate air supply branch path 32 is connected to the reservoir 114, and a right end of the intermediate air supply branch path 32 is connected to a middle portion of the compressor auxiliary path 31, so that the compressor auxiliary path 31 and the intermediate air supply branch path 32 are communicated, so as to effectively achieve the air supply cooling effect.
Further, the air suspension direct expansion type air conditioning unit further comprises a bypass branch 41, a bypass valve 411 is arranged on the bypass branch 41, the left end of the bypass branch 41 is connected between the air suspension compressor 111 and the check valve 112, the right end of the bypass branch 41 is connected with the gas-liquid separator 118, the flow direction of a refrigerant in the bypass branch 41 is shown by an arrow in fig. 1, and the bypass branch 41 is used for reducing the pressure ratio of the air suspension direct expansion type air conditioning unit, so that the start-stop control of the air suspension compressor 111 is effectively assisted, and the controllability of the air suspension type air conditioning unit is further effectively improved. It should be noted that the present invention does not limit the specific type of the bypass valve 411, and the technician can set the type according to the actual use requirement.
Further, the air suspension direct expansion type air conditioning unit further comprises a load balancing branch 51, a load balancing valve 511 is arranged on the load balancing branch 51, the left end of the load balancing branch 51 is connected between the check valve 112 and the evaporative condenser 113, the right end of the load balancing branch 51 is connected with the gas-liquid separator 118, the flow direction of a refrigerant in the load balancing branch 51 is shown by an arrow in fig. 1, and the load balancing branch 51 is used for energy regulation control and surge control of the air suspension compressor 111, so that the heat exchange efficiency of the unit is effectively improved, noise generated during operation of the unit is reduced, and user experience is effectively improved. It should be noted that the present invention does not limit the specific type of the load balancing valve 511, and the technician can set the type according to the actual use requirement.
Furthermore, the air-suspension direct-expansion air conditioning unit further includes a first cooling branch 61 and a second cooling branch 71, and the flow directions of the refrigerants in the first cooling branch 61 and the second cooling branch 71 are shown by arrows in fig. 1. The first cooling branch 61 is provided with a cooling expansion valve 611, the left end of the first cooling branch 61 is connected with the reservoir 114, and the right end of the first cooling branch 61 is connected with the gas-liquid separator 118, so as to effectively prevent the gas-liquid separator 118 from having a problem of overhigh suction superheat. It should be noted that, the present invention does not limit the specific type of the cooling expansion valve 611, and the technician can set the type according to the actual use requirement. The left end of the second cooling branch 71 is connected with the liquid storage device 114, and the right end of the second cooling branch 71 is connected with the air suspension compressor 111, so that the air suspension compressor 111 is cooled, and the compression efficiency of the air suspension compressor 111 is effectively guaranteed. Preferably, a cooling port (not shown in fig. 1) is provided on the housing of the air suspension compressor 111, and the cooling port is located near the motor of the air suspension compressor 111, and the other end of the second cooling branch 71 is communicated with the inside of the air suspension compressor 111 through the cooling port, so as to improve the cooling effect thereof to the maximum extent.
To sum up, in the preferred technical scheme of the utility model, the utility model discloses a gas suspension compressor 111 and evaporative condenser 113 and a plurality of thermal expansion valve and indoor heat exchanger 117's compound mode and corresponding pipeline configuration are in order to constitute the cold formula air conditioning unit that expands of evaporation based on gas suspension compressor 111 to when guaranteeing energy-conserving effect, can also effectively guarantee its heat exchange efficiency, and then furthest promotes the comprehensive properties of the formula air conditioning unit that expands is directly suspended to gas.
So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.
Claims (10)
1. An air suspension direct expansion type air conditioning unit is characterized by comprising a refrigerant circulation loop and a shaft lifting air supply branch connected with the refrigerant circulation loop,
the refrigerant circulation loop is sequentially provided with a gas suspension compressor, a one-way valve, a condenser, a liquid storage device, a throttling component, an indoor heat exchanger and a gas-liquid separator,
the air supply device is characterized in that an air supply member is arranged on the shaft lifting air supply branch, one end of the shaft lifting air supply branch is connected with the liquid storage device, the other end of the shaft lifting air supply branch is connected with the air suspension compressor, and therefore a refrigerant in the liquid storage device can pass through the shaft lifting air supply branch and flow into the air suspension compressor after flowing through the air supply member.
2. The air-suspending direct-expansion air conditioning unit as claimed in claim 1, further comprising a compressor auxiliary and a middle air supply branch,
the two ends of the compressor auxiliary road are respectively connected to the air inlet end and the air outlet end of the air suspension compressor, one end of the middle air supply branch road is connected with the liquid storage device, and the other end of the middle air supply branch road is connected to the compressor auxiliary road.
3. The air-suspending direct-expansion type air conditioning unit as claimed in claim 2, further comprising a bypass branch,
the bypass branch is provided with a bypass valve, one end of the bypass branch is connected between the gas suspension compressor and the one-way valve, and the other end of the bypass branch is connected with the gas-liquid separator.
4. The air-suspending direct-expansion air conditioning unit as claimed in claim 2, further comprising a load balancing branch,
and a load balancing valve is arranged on the load balancing branch, one end of the load balancing branch is connected between the one-way valve and the condenser, and the other end of the load balancing branch is connected with the gas-liquid separator.
5. The air-suspending direct-expansion air conditioning unit as claimed in claim 2, further comprising a first cooling branch,
and a cooling expansion valve is arranged on the first cooling branch, one end of the first cooling branch is connected with the liquid storage device, and the other end of the first cooling branch is connected with the gas-liquid separator.
6. The air-suspending direct-expansion air conditioning unit as claimed in claim 2, further comprising a second cooling branch,
one end of the second cooling branch is connected with the liquid storage device, and the other end of the second cooling branch is connected with the gas suspension compressor.
7. The air-suspending and directly-expanding type air conditioning unit as claimed in claim 6, wherein a cooling port is provided on a housing of the air-suspending compressor,
the cooling port is located near a motor of the air suspension compressor, and the other end of the second cooling branch is connected with the air suspension compressor through the cooling port.
8. The air-suspending and directly-expanding type air conditioning unit as claimed in claim 1, wherein an electrically controlled ball valve is further provided on the refrigerant circulation loop,
the electrically controlled ball valve is located between the reservoir and the throttling member.
9. The air-suspending direct-expansion type air conditioning unit as claimed in any one of claims 1 to 8, wherein the indoor heat exchanger and the throttling member are each plural in number,
the refrigerant circulation loop is provided with a plurality of indoor heat exchange branches connected in parallel, and each indoor heat exchange branch is provided with the throttling component and at least one indoor heat exchanger.
10. The air-suspension direct-expansion air conditioning unit as claimed in claim 9, wherein the throttling member is a thermostatic expansion valve; and/or
The condenser is an evaporative condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120167983.3U CN214581526U (en) | 2021-01-21 | 2021-01-21 | Air suspension direct expansion type air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120167983.3U CN214581526U (en) | 2021-01-21 | 2021-01-21 | Air suspension direct expansion type air conditioning unit |
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| Publication Number | Publication Date |
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| CN214581526U true CN214581526U (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120167983.3U Active CN214581526U (en) | 2021-01-21 | 2021-01-21 | Air suspension direct expansion type air conditioning unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198923A (en) * | 2021-11-22 | 2022-03-18 | 青岛海尔空调电子有限公司 | Air supply system of compressor |
-
2021
- 2021-01-21 CN CN202120167983.3U patent/CN214581526U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198923A (en) * | 2021-11-22 | 2022-03-18 | 青岛海尔空调电子有限公司 | Air supply system of compressor |
| CN114198923B (en) * | 2021-11-22 | 2023-10-20 | 青岛海尔空调电子有限公司 | Air supply system of compressor |
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